Efficacy and Safety of Combined Nanofat Injection With Either Platelet Rich Fibrin or Microneedling Versus Nanofat Injection Alone in the Treatment of Facial Atrophic Post Acne Scars

Summary

To compare the efficacy and safety of combined nanofat injection with either platelet rich fibrin or microneedling versus nanofat injection alone in the treatment of facial atrophic post acne scars.

Conditions

• Acne Scars - Atrophic

Interventions

PROCEDURE

nanofat injecion

potential donor sites for fat graft including the lower abdomen, flanks, hips and thighs. After injection of 2 cm of lidocaine hydrochloride 2% intradermally at site of entry blade will be stabbed to open access for harvesting cannula to access subcutaneous fat. Tumescent anesthesia will be infiltrated in multidirectional plane to numb the whole area and waiting for 20 minutes, then starting to push the harvesting cannula in and out with slight suction pressure created by pulling the plunger of 20 ml luer-lock syringe, finally subcutaneous fat started to be expelled in the syringe The aspirated fat will be centrifuged at 3000 rpm for 3 min to concentrate fat particles Then the lipoaspirate will be mechanically emulsified using 2.4, 1.4, and 1.2 mm Luer-to-Luer Tulip connectors via 30 mechanical passes between two syringes through each connector, respectively A filtration process will be performed using a special filter containing a mesh with ultra-fine holes to remove debris

PROCEDURE

Platelet rich fibrin

PRF will be produced by single spin centrifugation of 10 ml of venous blood collected in plain glass tube without anticoagulant at 700 rpm for 3 min. The upper layer, yellow to orange colored fluid, will be collected as fluid PRF. Approximately, 1 ml Fluid PRF can be separated from 10 ml blood. * 45 min before the session, local anesthetic cream containing mixture of lidocaine and prilocaine will be applied to one side of the face, then will be sterilized by alcohol before starting the treatment. * one side of face will be treated by intradermal injection of fluid PRF. 0.1 mL of fluid PRF will be injected intradermally into the atrophic scars with 1.5 to 2 cm interval using insulin syringe followed by gentle massaging of the treated area. * The treatment will be started immediately after separation of PRF to avoid clot formation. The patients will receive three treatment sessions with 4 weeks interval

PROCEDURE

Microneedling

Microneedling will be done by Derma electric-pen, and needle cartridge with 12 needles. Needle length will be adjusted at 2.5 mm and speed level 4 (blue color). * 45 min before the session, local anesthetic cream containing mixture of lidocaine and prilocaine will be applied to one side of the face, then will be sterilized by alcohol before starting the treatment. Dermapen will be moved in the four directions, vertically, horizontally, diagonally right and left, over one side of the face without pressing. * The patients will receive three treatment sessions with 4 weeks interval

Sponsors & Collaborators

• Assiut University

  lead OTHER

Principal Investigators

• Radwa Mohamed Abdel Moniem Bakr, Associate professor

• Howida Omar Mahmoud, Associate professor

• Eman Mohamed Kamal Elsayed Youssef, Professor · unafflilted

Study Design

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

NONE

Model

PARALLEL

Eligibility

Min Age

18 Years

Max Age

45 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2026-05-01

Primary Completion

2027-05-01

Completion

2027-12-01